Patent · US Active

Electroluminescent polymers containing planar arylamine units, the preparation and use thereof

US8679644B2 · kind B2 · utility

2Cited by

10References

33Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Amir Hossain Parham · Frankfurt am Main, DE
Susanne Heun · Bad Soden, DE
Aurélie Ludemann · Frankfurt, DE
Arne Buesing · Frankfurt, DE
Junyou Pan · Frankfurt am Main, DE
Heinrich Becker · Königstein, DE

Key dates

Filing date	Apr 26, 2005
Grant date	Mar 25, 2014
Priority date	—
Expiry date	May 25, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/549
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to polymers which contain certain triarylamine units of the Formula (1)The materials according to the invention exhibit a longer lifetime than materials in accordance with the prior art and therefore more suitable for use in polymeric organic light-emitting diodes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.